I was the passenger in a car and we were approaching a roundabout, with the choice of three lanes. An extra-long lorry and trailer chose the middle lane and we then went into the third (right) lane. As it was clear with no traffic coming from the right, we started off at the same time as the extra-long lorry and trailer. The lorry went straight over, cutting into the third lane as we tried to negotiate our position but, being an extra long vehicle, the trailer did not bend with the roundabout and cut across our path, making us stop to let the rest of the truck continue. The traile caught our front bumper and ripped it half off. Personally I see the fault resting entirely with the lorry driver, as he should have been in the inner lane to start with as he was going into the left lane to get over the bridge, and we were aiming for the second lane over the bridge.